This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A sinusoidal electromagnetic wave in vacuum delivers energy at an average rate of 5.00 W/m2. What ... (Read 78 times)

bcretired

  • Hero Member
  • *****
  • Posts: 525
on: Jul 29, 2018
A sinusoidal electromagnetic wave in vacuum delivers energy at an average rate of 5.00 W/m2.
 
  What are the amplitudes of the electric and magnetic fields of this wave? (c = 3.0 x 108 m/s, 0 = 4  10-7 T  m/A, 0 = 8.85  10-12 C2/N  m2)

Question 2

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. At the moment contact is made with the battery (a) the voltage across the capacitor is A.
 
  equal to the battery's terminal voltage. B) less than the battery's terminal voltage, but greater than zero. C) equal to the battery's terminal voltage. D) zero. (b) the voltage across the resistor is A. equal to the battery's terminal voltage. B) less than the battery's terminal voltage, but greater than zero. C) equal to the battery's terminal voltage. D) zero.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jayson

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 29, 2018
Answer to Question 1

Emax = 0.0614 V/m, Bmax = 0.205 nT

Answer to Question 2

(a) D (b) C


bcretired

  • Member
  • Posts: 525
Reply 2 on: Jul 29, 2018
:D TYSM

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Energy flow through an ecosystem. Energy flow through an ecosystem.
Rich Energy Deposits Rich Energy Deposits
The level of future emissions is closely linked to the rate of population growth The level of future emissions is closely linked to the rate of population growth
Energy Use by Different Country Groups Energy Use by Different Country Groups
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C? how much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C?
Video: Otitis Media

For a complete list of videos, visit our video library